2280785 has 8 divisors (see below), whose sum is σ = 2947560. Its totient is φ = 1684224.

The previous prime is 2280767. The next prime is 2280823. The reversal of 2280785 is 5870822.

It can be written as a sum of positive squares in 4 ways, for example, as 204304 + 2076481 = 452^2 + 1441^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2280785 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17480 + ... + 17609.

It is an arithmetic number, because the mean of its divisors is an integer number (368445).

2^2280785 is an apocalyptic number.

It is an amenable number.

2280785 is a deficient number, since it is larger than the sum of its proper divisors (666775).

2280785 is a wasteful number, since it uses less digits than its factorization.

2280785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35107.

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 2280785 is about 1510.2268041589. The cubic root of 2280785 is about 131.6319907261.

The spelling of 2280785 in words is "two million, two hundred eighty thousand, seven hundred eighty-five".